Problems Installing to Phone

Hello. I'm trying to add the Last.fm app to my T-Mobile Dash ( Windows Mobile 6 Standard ). I downloaded the files from http://hoelken.brinkster.net/lastfm/download.aspx

After saving them to my computer, they opened up with WinRAR where I chose to extract them to my WMSmartphone folder that syncs with my phone.

I got the files there, synced with my phone, and then saw them on my phone. But I noticed none of them were .cab files on my computer nor my phone. And I wasn't able to open the Setup file from my phone. I just received a page with lots of script and code. Help anyone? Thanks!